Mukherjee, D., S. Samaddar, and T. Kar. “Conventional Versus Flap Tracheostomy: Operative Simplicity, Stomal Care, Complications”. Bengal Journal of Otolaryngology and Head Neck Surgery, vol. 28, no. 2, Aug. 2020, pp. 120-6, doi:10.47210/bjohns.2020.v28i2.328.